Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《》 2004-02
Add to Favorite Get Latest Update

Comparison of Gridding Schemes for the Doppler Radar Data

YANG Yi,QIU Chong-jian(Department of Atmospheric Science, Lanzhou University,Lanzhou730000,China)  
The simulanted radar data are produced by using high-order Lengendre polynomials to fit the real radar observed wind.Three interpolation schemes are tested with the simulated data.In first scheme(CVI),the radar data are first interpolated to horizontal Cartesian grids but left on their original constant elevation surfaces in the vertical,then the data are further interpolated to the Cartesian grids with a linear interpolation in the vertical.The second scheme is the three-dimension Barnes interpolation technique(3D-Barnes).The third scheme is three-dimension variational analysis (VAR).The results show that the 3D-Barnes scheme obviously excels the others, especially at middle level;the error of the CVI scheme is slightly larger than the former,and its smoothness is poor,and it has biggish missing region at lower and upper level.The VAR scheme is not perfect.
【Fund】: 国家自然科学基金(40175010);; 甘肃人影(2002-1-04)项目资助
【CateGory Index】: P412.25
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved